Thunderstorms developed in southeast Nebraska along and south of a weak nearly stationary front during the early evening of Sept 1. The storms produced a few marginally severe hailstones, but since many of them repeatedly tracked across the same area for several hours, they also produced locally very heavy rain amounts.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OAX wrote it up.
Thunderstorms developed in southeast Nebraska along and south of a weak nearly stationary front during the early evening of Sept 1. The storms produced a few marginally severe hailstones, but since many of them repeatedly tracked across the same area for several hours, they also produced locally very heavy rain amounts. The heavy rain caused some flooding and flash flooding east of Lincoln and also helped push the Missouri River back up to near-flood or flood levels in far southeast Nebraska.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before the first event at Sep 1, 2:27 PM CST, 4 hours 31 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 327 PM CDT WED SEP 1 2010 .SHORT TERM...TONIGHT. FORECAST CONCERNS TONIGHT WILL BE THE CHANCE OF SHOWERS AND THUNDERSTORMS AHEAD OF A COLD FRONT. AT 20Z...THE SFC FRONT THAT MOVED THROUGH THE CWA HAS REORGANIZED INTO AN AREA OF LOW PRES NORTH OF LNK WITH A FNT BTWN KFET AND LNK. PRES FALL OF MORE THAN 4MB IN THE LAST THREE HOURS HAVE BEEN NOTED WITH THIS FEATURE. MEANWHILE THE PREFRONTAL TROF WAS OVER THE WRN PLAINS AND IS AHEAD OF THE COLD FRONT OVER WRN SD. THE INITIAL FOCUS FOR SHOWERS AND THUNDERSTORMS WOULD BE IN THE VICINITY OF THIS AREA OF LOW PRESSURE IN ERN NEB/SW IA AND ALSO OVER WRN NEBRASKA AHEAD OF AN APPROACHING SHORTWAVE TROF. INITIALLY INSTABILITY IS LIMITED DUE TO LINGER CLOUDS TODAY AND COOLER TEMPS. TONIGHT...THE H85 FLOW INITIALLY FROM THE SOUTHEAST BECOMES MORE SOUTH AND INCREASES AHEAD OF THIS MID LEVEL FLOW. STEEPENING LAPSE RATES...INCREASING INSTABILITY...AND 40-50KTS OF EFFECTIVE SHEAR SHOULD PROMOTE SCATTERED SHOWER AND THUNDERSTORMS...SOME SEVERE TONIGHT AHEAD OF THE COLD FRONT. LOWS TONIGHT SHOULD BE IN THE 60S. .LONG TERM...THURSDAY THROUGH WEDNESDAY. MAIN FORECAST CONCERNS IN THIS PERIOD ARE TIMING THE END OF PCPN ON THURSDAY...TEMPERATURES THROUGH THE WEEKEND AND PCPN CHANCES RETURNING EARLY NEXT WEEK. COLD FRONT SHOULD BE MOVING SEWD OUT OF SERN NE AND SWRN IA BY MID MORNING THURSDAY. SCT SHOWER AND TSTM ACTIVITY MAY LINGER FOR A WHILE IN THE MORNING...BUT THE AFTN SHOULD BE MAINLY DRY. LEFT A SLIGHT CHANCE GOING CLOSE TO THE KS AND MO BORDERS...BUT OTHERWISE EXPECT COOLER AND DRIER AIR TO MOVE IN BEHIND THE FRONT. MID TROPOSPHERIC FLOW PATTERN WILL FEATURE A RIDGE BUILDING OVER THE ROCKIES FRIDAY...GRADUALLY EXPANDING INTO THE PLAINS SUNDAY. OUR AREA SHOULD BE DRY OR MAINLY DRY IN THAT PERIOD. THERE ARE SOME HINTS OF LIGHT PCPN WITH THE LOW LEVEL WARM AIR ADVECTION LATE SATURDAY NIGHT INTO SUNDAY NIGHT...BUT LEFT POPS BELOW 15 PERCENT AT THIS TIME. SOUTHERLY WINDS WILL START INCREASING SUNDAY...BUT WILL BE STRONGER AND MORE GUSTY MONDAY. 500 MB RIDGE AXIS SHIFTS EAST OF OUR AREA MONDAY...AS A TROUGH DIGS OVER THE ROCKIES. THIS PUTS US IN SOUTHWEST FLOW ALOFT...AND POTENTIALLY A MORE ACTIVE PATTERN AS SUBTROPICAL MOISTURE IS TAPPED. && .AVIATION... TAF SITES KOFK/KOMA/KLNK 18Z TAFS A SMALL SCALE WEATHER FEATURE MOVING ACRS ERN NEB AT MID AFTERNOON PRODUCED 3-4MB PRES FALLS IN THE LAST THREE HRS ALONG WITH PATCHY MVFR CIGS IN A SMALL AREA BTWN KOMA TO KLNK. THIS FEATURE WILL CONTINUE TO MOVE EAST THIS AFTERNOON WITH SOME ISOLD -SHRA. HAVE SOME SHOWERS MENTINED WITH A CB...AND DID NOT MENTION THUNDER DUE TO UNCERTAINTY OF LOCATION OF -TSRA. VRB WINDS WITH THE SHOWERS FROM 15 TO 25KTS. OVERNIGHT THETA-E ADVECTION WILL CONTINUE WITH THE POTENTIAL FOR SHOWERS AND THUNDERSTORMS AHEAD OF THE COLD FRONT. TIMING AND LOCATION OF ACTUAL PRECIP AREAS WILL BE TOUGH TO PIN DOWN WITH BROAD LIFT AHEAD OF THE COLD FRONT...SO HESITANT TO INCLUDE TSRA MENTION EXCEPT WITH BEST LIFT. PATCHY MVFR CIGS AND VSBYS WITH SHOWERS AND TSRA OVERNIGHT. CDFNT MOVES THRU THE TAF SITES AROUND 12Z AT KOFK AND 15-18Z AT KOMA/KLNK. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && SHORT TERM...ZAPOTOCNY LONG TERM....MILLER AVIATION...ZAPOTOCNY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 451 PM CDT WED SEP 1 2010 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-021100- ANTELOPE-BOONE-BURT-BUTLER-CASS-CEDAR-COLFAX-CUMING-DODGE-DOUGLAS- FREMONT IA-GAGE-HARRISON IA-JEFFERSON-JOHNSON-KNOX-LANCASTER-MADISON- MILLS IA-MONONA IA-MONTGOMERY IA-NEMAHA-OTOE-PAGE IA-PAWNEE-PIERCE- PLATTE-POTTAWATTAMIE IA-RICHARDSON-SALINE-SARPY-SAUNDERS-SEWARD- SHELBY IA-STANTON-THURSTON-WASHINGTON-WAYNE- 451 PM CDT WED SEP 1 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NEBRASKA AND SOUTHWEST IOWA. .DAY ONE...TONIGHT AND THURSDAY SEVERE STORM DEVELOPMENT IS POSSIBLE THIS EVENING IN ASSOCIATION WITH A SURFACE BOUNDARY STRETCHING FROM THE CENTRAL PLAINS INTO THE DAKOTAS. LARGE HAIL AND DAMAGING WINDS ARE THE PRIMARY HAZARDS. NON SEVERE THUNDERSTORMS ARE THEN EXPECTED AFTER MIDNIGHT AND INTO THURSDAY MORNING. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH WEDNESDAY THERE IS A SMALL CHANCE FOR THUNDERSTORMS MONDAY NIGHT THROUGH WEDNESDAY WITH THE NEXT SYSTEM PASSING THROUGH THE PLAINS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 632 PM CDT WED SEP 1 2010 NEZ065-066-078-020000- LANCASTER NE-SALINE NE-SEWARD NE- 632 PM CDT WED SEP 1 2010 ...SPECIAL WEATHER STATEMENT FOR SOUTHEASTERN SEWARD...NORTHERN SALINE AND WESTERN LANCASTER COUNTIES UNTIL 700 PM CDT... AT 630 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR DORCHESTER...OR 26 MILES SOUTHWEST OF LINCOLN...MOVING NORTHEAST AT 30 MPH. HAIL UP TO THE SIZE OF NICKELS IS EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... CRETE... MILFORD... PLEASANT DALE... DENTON... THIS STORM MAY INTENSIFY. MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. CHERMOK
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 737 PM CDT WED SEP 1 2010 NEZ065-066-020100- LANCASTER NE-SEWARD NE- 737 PM CDT WED SEP 1 2010 ...SPECIAL WEATHER STATEMENT FOR EASTERN SEWARD AND NORTHWESTERN LANCASTER COUNTIES UNTIL 800 PM CDT... AT 735 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR PLEASANT DALE...OR 12 MILES WEST OF LINCOLN...MOVING NORTHEAST AT 40 MPH. HAIL UP TO THE SIZE OF NICKELS IS EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... PAWNEE STATE RECREATION AREA... MALCOLM... BRANCHED OAK STATE RECREATION AREA... RAYMOND... DAVEY... THIS STORM MAY INTENSIFY. MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. CHERMOK
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 744 PM CDT WED SEP 1 2010 NEZ066-089-020115- GAGE NE-LANCASTER NE- 744 PM CDT WED SEP 1 2010 ...SPECIAL WEATHER STATEMENT FOR SOUTHEASTERN LANCASTER AND NORTHERN GAGE COUNTIES UNTIL 815 PM CDT... AT 740 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR PICKRELL...OR 9 MILES NORTH OF BEATRICE... MOVING NORTH AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... CORTLAND... FIRTH... HICKMAN... PANAMA... STAGECOACH STATE RECREATION AREA... WAGON TRAIN STATE RECREATION AREA... THIS STORM MAY INTENSIFY. MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. CHERMOK
The Omaha radar (KOAX), 64 km away, was scanning. The volume nearest the first event began at 00:57 UTC.
6 hail, 2 flash flood, 1 flood. Local standard time, as filed.
A few quarter-size hailstones were reported by a trained spotter just south of Malcolm.
Nickel to quarter-size hail fell for several minutes in the Raymond area.
Rainfall of 2 to 4 inches caused flash flooding across 310th Street just north of Highway 1 near Murdock.
Rainfall of 3 to 5 inches fell across the upper reaches of the Weeping Water Creek basin including 4.47 inches in Weeping Water. The heavy rain caused flash flooding along Weeping Water Creek and some of its tributaries from around Alvo to downstream of Weeping Water. In Weeping Water, water crossed a few roads and flooded into the city park. Numerous county roads between Alvo and Weeping Water were flooded.
Rainfall of 3 to 5 inches fell across much of the Weeping Water Creek basin from the evening of 9/1 until the early morning hours of 9/2. This caused Weeping Water Creek to flood from near Weeping Water downstream to Union. The creek at Union crested a little over its 25 foot flood stage during the early afternoon hours of 9/2. In Weeping Water the creek crested about 3 feet lower than the highest crest that was reached in June of 2010. Numerous county roads along the creek flooded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2010Every state in 2010This day in weather historyWarnings in Nebraska, September 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 247621, 247622, 247623, 247624, 247626, 247627, 247617, 247618, 247620.